Improved galvano-electric machine



J R. PALMENBERG.

Magnetic Machine.

Patented Nov. 9, 1858.

N. PETERS, PMlo-Lflhugnpher, Washingion. QC,

UNITED STATES PATENT OFFICE,

IMPROVED GALVANO-ELECTRIC MACHINE.

Specification forming part of Letters Patent No. 22,029, dated November 9, 1858.

To all whom it may concern:

Be it known that I, J osEPH It. PALMENBERG, of New York, in the county and State of New York, have invented a new and Improved Magneto-Galvano-Electrical Machine; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

Figure I represents a top view, and Fig. II a side elevation, of my machine.

A is a wooden block, in which the battery B and the necessary stands, cups, 850., are fastened. The coil or helix of copper wire 0 is secured inside this block A, as Well as the springhammer D, and the whole is then covered up by a plate, E, having a provision for the milledhead screw F to pass through for the purpose of regulating the spring-hammer D.

The coil or helix of copper wire 0 is constructed in the usual manner.

The galvanic battery B, which is fitted into a recess made in the wooden block A, consists of a round porcelain cup, to, into which a cylinder of zinc, b, is placed,in the center of which a block, d, consisting of a composition of coal, is put in the usual manner. The cup (0 is filled about half full of water, together with a teaspoonful of common salt, which must be well dissolved in the Water. The coal is saturated with nitric acid and then inserted into the zinc cylinder.

Around the coal (1 is a platina wire, 12, with its end inserted into the cup or stand K and fastened into the same with binding-screw. The wire 20, attached to the zinc cylinder 1), is fastened into the cup or stand Z with a binding-screw. The current from the battery B is carried, by means of the wires shown in red ink and situated below the wooden block A, through the cups K and Z to the helix 0, &c., in the usual manner, and then by connectingwires to the cupsN and P and to the regulator P, to which the wires are secured, provided with handles or other conductors for communicating the effect.

The regulator P consists of a metallic tube,

o, lined with gutta-percha and inserted into the wooden block A in such a manner that the metallic bottom of said tube comes in contact with a metallic plate situated in the bottom of the hole and connected with the wires from the helix. The upper part of the tube 01 is removable, so as to be able to fill the same with water. A connecting-wire, g, is then inserted through the top of this cover into the water. hen the full force of the galvanic shock is required the connecting-wires are attached to the cups or stands P and N but, for the purpose of modifying the physiological ed'ects of the galvanic shock to one of its mildest form, the conducting-wires provided with the handles are connected to the cup or stand N and to the wire 9 in the regulator P, and according as the end of said wire is approximated to or separated from the bottom of the tube the strength or the gentleness ot' the shock will be regulated.

The great advantage of my improved machine consists in the arrangement of placing the helix, as well as the spring hammer or needle, in the inner side of the wooden block, so as to protect that part of the apparatus from dirt and from the bad effects ot'the acid, which endangers very often and suddenly the working of the same.

I do not claim any of the parts separately; but

What I claim as my invention, and desire to secure by Letters Patent, is-

The arrangement and construction of a magneto-galvano-electrical machine in the manner substantially as described, having the helix and spring-hammer, &c., situated in the inner part of the block or stand which supports all the other parts, and protected from any external danger through which the action of the apparatus might be deranged, substantially as specified.

J OSEPEI R. PALMENBERG.

Witnesses:

HENRY E. RoEDEE, FRANCIS BownANN. 

